Earth Support Corp

Windham CountyVermont

Halifax, Vermont

Bedrock sits a median 15 ft down across 360 logs, shallower than the Vermont median of 20 ft. 1 of its 20 inventoried bridges is rated poor (5%, against 4% statewide).

Median depth to bedrock

15 ft

middle half 7–30 ft · 360 logs

Bridges rated poor

1

of 20 inventoried

FEMA repair $, Windham County

$44.3M

federal share since 2010 · county-wide

01 · Ground

Rock turns up a median 15 ft down

From 360 depth-to-rock records inside Halifax (Vermont DEC well records). Logs cluster where people drill wells and bore for roads, so treat this as the town’s pattern, not a site answer.

Half of Halifax's logs reach rock between 7 and 30 ft

Depth to bedrock: 10th–90th percentile whisker, middle-half box, median tick; dashed line = Vermont median.
median 15 ft
VT 20 ft
0204060 ft
0204060801000–5 ft5–10 ft10–20 ft20–50 ft50–100 ft100+ ft
n = 360 logsSource: Vermont DEC well records
▸ Show the numbers
Depth to rock (ft)Logs
0–548
5–1078
10–2080
20–50100
50–10042
100+12

Rock within 10 ft

40%

of logs (34% across Vermont). Shallow rock means ledge in excavations, refusal for driven piles and rock anchors rather than soil nails; deep ground means taller shoring and more groundwater. 13% of logs here go past 50 ft.
Bedrock & soils across New England

02 · Bridges

1 of 20 bridges are rated poor — about the same as the Vermont rate of 4%

Every highway bridge and large culvert in the 2025 National Bridge Inventory that stands inside Halifax. Median age 46 years; 5 posted for weight.

55% good, 5% poor

FHWA good / fair / poor rating — the lowest of deck, superstructure, substructure or culvert.
  • Good11 · 55%
  • Fair8 · 40%
  • Poor1 · 5%

Structures by decade built

0123451910s1920s1930s1940s1950s1960s1970s1980s1990s2000s2010s
n = 20 structuresSource: FHWA National Bridge Inventory 2025
▸ Show the numbers
BuiltStructures
1910s1
1920s1
1930s2
1940s2
1950s1
1960s2
1970s1
1980s2
1990s2
2000s1
2010s5

The poor-rated bridges

Bridges rated poor in Halifax
CarriesOverBuiltDaily traffic
VT 00112 MLE. BR NORTH R19401,200
Every poor bridge in New England

03 · Dams & disasters

Windham County has drawn $44.3M in federal disaster repair since 2010

FEMA Public Assistance is reported by county, so the figure below is Windham County-wide context, not a Halifax number.

FEMA Public Assistance, Windham County

$44.3M

Federal share obligated across 878 projects in 7 declared disasters since 2010. The largest category is roads & bridges (86%); roads & bridges took $38.3M.
Dams, disasters & moving ground

04 · Money & permits

1 ground-related permits in the city's open data

Ground-related permits in open data

1

Permits in the city’s open-data portal that mention retaining walls, excavation or foundations. Only a handful of portals are read, so this counts what is published, not everything built.
How long permits take

05 · Next door

Halifax and the 7 towns that border it

A dash means no data for that layer, not zero.
Halifax compared with neighbouring towns
TownPoor bridgesRock depth
Halifax, VT1 / 2015 ft
Brattleboro, VT2 / 3820 ft
Colrain, MA2 / 2622 ft
Guilford, VT1 / 2510 ft
Wilmington, VT1 / 2315 ft
Whitingham, VT3 / 1216 ft
Marlboro, VT0 / 810 ft
Heath, MA0 / 515 ft

Where these numbers come from

Method, sources & caveats

Halifax is the Census county subdivision 5002531150 (Windham County). Every record is placed here by its coordinates, not by the place name the source uses.

  • Towns are Census county subdivisions: cities, towns, plantations, and Maine/New Hampshire unorganized territories and townships. Every record is placed in a town by its coordinates (point-in-polygon), not by the source's own place label — so a bridge in Roxbury counts for Boston and a well in 'North Waltham' counts for Waltham.
  • Bridges: FHWA NBI 2025, highway structures ≥ 20 ft including large culverts. 'Poor' is FHWA's good/fair/poor rating (lowest of deck, superstructure, substructure or culvert ≤ 4). Percent-poor is shown only for towns with at least 5 structures.
  • Depth to bedrock is the median of driller- and boring-reported depths in the town, shown only where at least 10 logs exist. Water-well logs over-sample rural lots and hilltops; one town median never describes a particular site.
  • Bedrock depths use the same state databases and filters as the Bedrock & soils module (bedrock wells and borings that reached rock, 0 < depth ≤ 400 ft, exact re-filings dropped), but every log is placed in a town by its coordinates rather than the driller's town field, so town counts can differ slightly between the two pages. Connecticut and Rhode Island have no statewide public well-log database with depths.
  • Dams: only high-hazard-potential dams whose latest condition assessment is Poor or Unsatisfactory are counted (live NID). Connecticut and Rhode Island assessments may lag.
  • FEMA Public Assistance dollars are federal share obligated for disasters declared since 2010, reported by county — they are county context, not a town figure.
  • Grant awards are Massachusetts only (EEA Dam & Seawall program, MVP Action grants, CZM Coastal Resilience). Other states' programs are not yet included.
  • Ground-related permit counts cover only the municipal portals the pipeline reads (Boston, Cambridge, Somerville, Worcester, Framingham, Providence, Portsmouth, Hartford and a few others) — an absent count means 'not covered', not zero.
Data as of
Sep 11, 2026
Generated
Sep 11, 2026
Records
367,748
Refresh
Live pull · weekly

Published by Earth Support Corp as a public resource. Regional statistics for planning and curiosity. They are not an engineering report, a bid recommendation or a statement about any particular site, firm or project. Spot an error? Tell us and we will correct it. Full method: methodology.

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